|
KMID : 1098419970050020139
|
|
Korean Journal of Medicinal Crop Science
1997 Volume.5 No. 2 p.139 ~ p.146
|
|
|
Effect of Priming and Light Quality on Seed Germintion in Three Campanulan Plants
|
|
Kang Jin-Ho
Park Jin-Seo
Kim Dong-Il
|
|
|
Abstract
|
|
|
|
Priming has been used to establish a better standing in practice as controling the seed moisture content after sowing. The experiment was done to measure the effect of priming (material ; concentration ; period) and light quality (red ; white ; dark) after sowing on seed germination and radicle elongation of Campanulaceae (Platycodon grandiflorum ; Codonopsis lanceolata ; C. pilosula) to give an information on their earlier standing establishment. The germination test was carried out with 12 hours irradiation for 9 days after priming treatment. In the darkness, the mean germination rate of all the species was decreased in the order to P. grandiflorum, C. pilosula, C. lanceolata. Their germination and radicle elongation became more inclined when primed with Ca(CO_3)_2 or with 50 to 150mM than with KNO_3 or no priming although there was no difference between priming periods. Under irradiation during their seed germination, however, the former order was changed to P. grandiflorum, C. lanceolata, C. pilosula because light quality treatment given after priming reduced the rate of C. pilosula but enhanced that of C. lanceolata. Although light quality forced after priming did not affect the mean germination rate of P. grandiflorum, it increased earlier or alltime germination of C. lanceolata or C. pilosula, respectively. White light after priming repressed germinations of C. lanceolata and C. pilosulai but increased earlier germinatin of P. grandiflorum, meaning that seed germination and radicle elongation of Campanulaceae could be determined by light quality treated after priming.
|
|
|
KEYWORD
|
|
|
Campanulaceae, Priming, Light quality, Germination, Radicle length
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|